Donald Trump's comments about John McCain's Vietnam War service received swift reaction and outrage from the Republican Party. NBC's Anthony Terrell, Salon's Joan Walsh, former RNC Chair Michael Steele and Buzzfeed's John Stanton join to discuss. watch

Author Barton Swaim joins Steve Kornacki to discuss his memoir "The Speechwriter," in which he pens his experience working for former South Carolina Governor Mark Sanford during his disappearance and extramarital affair. watch

Lawrence O'Donnell and Robert Costa speak about Donald Trump's declared fortune and explain why financial disclosure documents that Trump filed with the FEC may not solve the puzzle of his wealth. watch

The 2016 Democratic candidates shared the stage for the first time at an Iowa dinner on Friday, and the Clinton camp had a special request for fans outside of the venue. Jonathan Capehart, Susan Page, and Ben Domenech weigh in on how the candidates fared. watch